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Ocean Turbulence. Part I: One-Point Closure Model—Momentum and Heat Vertical Diffusivities
Publisher: American Meteorological Society
Abstract: Ocean mixing processes have traditionally been formulated using one-point turbulence closure models, specifically the Mellor and Yamada (MY) models, which were pioneered in geophysics using 1980 state-of-the-art turbulence ...
Ocean Turbulence. Part II: Vertical Diffusivities of Momentum, Heat, Salt, Mass, and Passive Scalars
Publisher: American Meteorological Society
Abstract: A Reynolds stress?based model is used to derive algebraic expressions for the vertical diffusivities Kα(α = m, h, s) for momentum, heat, and salt. The diffusivities are expressed as Kα(R?, N, RiT, ?)in terms of the density ...
Three-Dimensional, Space-Dependent Mesoscale Diffusivity: Derivation and Implications
Publisher: American Meteorological Society
Abstract: AbstractRecently, we presented a parameterization of an arbitrary tracer 3D mesoscale flux that describes both diabatic and adiabatic regimes without using arbitrary tapering functions. However, we did not parameterize the ...
Parameterization of Mixed Layer and Deep-Ocean Mesoscales including Nonlinearity
Publisher: American Meteorological Society
Abstract: AbstractIn 2011, Chelton et al. carried out a comprehensive census of mesoscales using altimetry data and reached the following conclusions: ?essentially all of the observed mesoscale features are nonlinear? and ?mesoscales ...